If a PLC Has a Total Scan Time of 10

question 26

Multiple Choice

If a PLC has a total scan time of 10 ms and has to monitor a signal that _____ then the controller may not detect this change.

• A)changes state once in 20 ms
• B)is fast
• C)is constantly changing
• D)changes state twice in 5 ms

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Definitions:

Method

A systematic way or approach used to accomplish a task or solve a problem, often applied in research, analysis, or strategic planning.

Capital Rationing

A strategy or situation where a company limits its new investments or projects due to constraints on available financial resources.

Capital Investment Analysis

The process of assessing the viability and potential return on investments made in long-term assets.

Internal Rate of Return Method

A capital budgeting method used to estimate the profitability of potential investments.